120662665142 has 4 divisors (see below), whose sum is σ = 180993997716. Its totient is φ = 60331332570.

The previous prime is 120662665141. The next prime is 120662665223. The reversal of 120662665142 is 241566266021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241566266021 = 24329 ⋅9929149.

It is a self number, because there is not a number n which added to its sum of digits gives 120662665142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120662665141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30165666284 + ... + 30165666287.

It is an arithmetic number, because the mean of its divisors is an integer number (45248499429).

Almost surely, 2^120662665142 is an apocalyptic number.

120662665142 is a deficient number, since it is larger than the sum of its proper divisors (60331332574).

120662665142 is an equidigital number, since it uses as much as digits as its factorization.

120662665142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60331332573.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 120662665142 in words is "one hundred twenty billion, six hundred sixty-two million, six hundred sixty-five thousand, one hundred forty-two".